Charge pump circuit
A charge pump and circuit technology, applied in the direction of conversion equipment without intermediate conversion to AC, can solve the problems of obvious streak image quality, deterioration, increase charge pump circuit, etc., to reduce voltage surge noise, The effect of stable output voltage and slowing down the instantaneous voltage change
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[0045] Please refer to image 3 , image 3It is a circuit diagram of a charge pump according to an embodiment of the present invention. The charge pumping circuit 300 is suitable for a display panel. The charge pumping circuit 300 includes a switch control circuit 302, switches W1-W4, a capacitor C1, and a capacitor C2, wherein each switch (W1-W4) has a first terminal, The second terminal and the control terminal, each capacitor has a first terminal and a second terminal. The coupling relationship of the above-mentioned components is as follows. A first terminal of the switch W1 is coupled to an input voltage Vin, and a second terminal of the switch W1 is coupled to a first terminal of the switch W4 and a first terminal of the capacitor C1. A first terminal of the switch W3 is coupled to the input voltage Vin and the first terminal of the switch W1 , and a second terminal of the switch W3 is coupled to the first terminal of the switch W2 and the second terminal of the capac...
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